Simha Rashi (Leo) occupies a particular place in this framework because Leo is the Sun's own sign — the one rashi where the Sun is said to be in its own home (Sva-Kshetra). When the Sun enters Simha, it is considered to be at full strength. In classical Jyotisha (Vedic astrology), this is described as a period of solar power and authority — which is why activities connected to seeking success, courage, leadership, and vitality are considered especially well-supported during this month.

In Karnataka and parts of South India, the Simha Sankranti is observed with more elaborate rituals and temple visits under the name Simha Sankramana. In Bengal, the day is noted in the panjika and observed through Snan (holy bath) and Dana (charity), consistent with how most monthly Sankrantis are marked here.

This is the deep monsoon season in Bengal. The rivers are full, the fields are green, and the air is thick with humidity. From a traditional agricultural perspective, the Simha solar month was when planting in certain regions was monitored carefully — the amount of rain that fell during Simha was considered a predictor of the coming harvest.

Religiously, the Sankranti moment itself — however many minutes it lasts — is considered the most potent period of the day for prayer, bathing in a sacred river, and acts of charity. Dana performed at Sankranti is considered significantly more meritorious than dana on ordinary days. This is the consistent teaching across all twelve monthly Sankrantis.