Gods
In Hinduism a large number of gods are worshipped. These beings are powerful entities known as devas. The exact nature of belief in regards to each deity varies between differing Hindu denominations and philosophies.
The devas are expansions of Brahman into various forms, each with a certain quality.
Yantras
Yantra (यन्त्र) is the Sanskrit word for "instrument" or "tool". One usage popular in the west is as symbols or geometric figures. Such symbols are used to balance the mind
or focus it on spiritual concepts.