What is "vaishnava-sahajiya"

Vaishnava-Sahajiya is a form of tantric Vaishnavism that centred in Bengal, India. It had precursors from the 14th century, but originated in its definitive form in the 16th century. Vaishnava-Sahajiya is generally considered as a ' left-hand path' (Sanskrit: vāmācāra) and apostate (Sanskrit: apasampradaya; see Sampradaya) from the "orthodox" or vedic standpoint, though followers claim that this view stems from a superficial understanding. There are both right-handed and left-handed Vaishnava-Sahajiyas Dakshinachara may be rendered into English as "right (Dakshina) (path to) attainment (chara)", while Vamachara may be rendered into English as "left (vama) (path to) attainment (chara)". The Dakshinacharyas ("Right Attainers") are the ones that practice the Panchamakara ('Five Ms') symbolically or through substitutions, whilst the Vamacharyas ("Left Attainers") are the ones that practice it literally.