
Drawing of ancient Buddhist ceremony which shows Tibetan monks holding a bell and dorje - a thunderbolt symbol - which Dr TA Wise believed inspired the Pictish double disc symbol which can be found on standing stones across the north and east of Scotland.
His 23 years in in India fuelled an intense interest in the cultural and social aspects of his adopted home. He wrote treatise on the Hindu system of medicine, diseases of the eye and preservation of ice while investing heavily in a hospital and servings as the Secretary to the Committee of Public Instruction in Calcutta.
But it was his theory that suggested the ancient Buddhists of Tibet travelled to Scotland to meet the Picts of the North and East that truly consumed the polymath.
On retiring from medicine in 1851, Dr Wise returned to Scotland and absorbed himself in ambitious archaeological projects, such as the excavation of the the Barry Hill hillfort near Alyth and the Iron Age broch near Dunrobin.
He became fascinated by the similarities he saw between the Tibetan objects in his collection of relics collected on his travels and the symbols etched into the Pictish standing stones of home.
His theory was that Buddhist missionaries came to Scotland and used the symbols as teaching tools before being developed by the Picts and used as a visual language.
In particular, he drew comparisons between the dorje, the Tibetan thunderbolt symbol - which represents abrupt change in human consciousness - and the prominent Pictish symbol of the double disc.
Dr Wise also found similarities between Tibetan round towers and the cromlech, a form of single-chamber megalithic tomb.

Dr TA Wise left Dundee to work for the Bengal Medical Service in the 1820s. He developed a deep interest in the antiquities, society and culture of his adopted homeland.
Several presentations to the Scottish Society of Antiquaries were made.
Christina Donald, curator of early history at Dundee Museum and Art Gallery, said: "His view was that Buddhist monks came to Scotland and used stones and symbols as teaching symbols for the Picts before Christianity took over.
"I wouldn't call it a crackpot theory but it is not a theory that would be accepted today, but it is interesting that no one has really come up with the definitive theory that explains Pictish standing stones."

The Pictish double disc symbol on standing stones found at (left to right) Monifieth, Aberlemno and Dunnichen. It's meaning is unknown.
But his theories were far from perfect, she added.
Ms Donald said: "When he excavated Dunsinane Fort in Perthshire he claimed the skulls that were found there were from the Far East, so he did try and shoehorn his theories in where he could.
"But at the same time, he was thinking about these things at a time when very little was written about the subject. TA Wise was also one of the first to think of the stones as one body of work."

Dr Wise drew comparisons with the dorje, which represents the thunderbolt and an abrupt change in human consciousness in Tibetan Buddhism, and the double disc symbol used by the Picts.
Ms Donald said it was possible that the disc was merely a universal symbol used by both societies. There is no evidence that Buddhists travelled to Scotland around this period, she added.
Meanwhile, recent research in the North East has concluded that the Romans may have influenced the Picts in the development of their own written language about 1,700 years ago.
Work to accurately date Pictish sites was conducted by a team, led by Dr Gordon Noble at Aberdeen University and National Museum of Scotland at Dunnicaer, a coastal fort near Stonehaven.

A page from the notebook of Dr Wise which shows his work on the theory that connects Pictish symbols to those of Tibetan monks.
Previously, scholars dated the country's earliest Pictish stones to anywhere between the 5th and 7th centuries
The new chronology also fits with the spread of Roman writing systems, suggesting the occupying force may have partially inspired their script and the use of symbols to represent significant names and places.
-Wise Ways, Travels of A Dundee Doctor examines the life and legacy of TA Wise and pulls together a number of artefacts from his collection, now in the keep of the city, as well as a selection of maps and drawing held by the British Library. The exhibition is currently on show at the McManus Museum and Art Gallery in Dundee.
Comment: While it's not inconceivable that Tibetan's could have travelled to Scotland, it's more likely that these symbols represent a shared experience encoded in similar symbology. In the same way the swastika appears all over the world, these symbols may be a simplified representation of an actual event these cultures witnessed, such as how comets everywhere have been depicted as dragons, snakes and thunderbolts. If the Tibetans conceived the image to represent a shift in human consciousness, it's intriguing to think that may be, at least in part, what they were documenting: