i believe that a vaishnava is not a person who keeps chanting lord's name and keeps remembering him all the time. for me, a true vaishnava is a person who sees the lord in everything he sees, does, thinks, feels, smells, tastes, hears. he is so engrossed in what he is doing that nothing bothers him. and at that state of engrossedness he finds nirvana, samadhi, or what ever you call it and the taste of it is so good that he keeps going back to it unknowingly.