Gimel offset the imbalance between two opposing forces and merge into one. Thus it is related to Gamla, used in the Talmud (moed katan 6b) to denote a bridge which unites two spaces. As such it is the power of kindness, called Gimoul, but also a symbol of reward and punishment.
Daled in the Talmud. Gimmel symbolizes a rich man running after a poor man (Daleth) to make him love.
The layout of the letter (Proto-Sinaitic) is formed of two bars at an angle, symbolizing the crown of the head and neck of a camel.
Hebrew Letter Gimmel Mystical Art אות ג קבלה