Meaning of 一念 in Japanese

Definition of 一念

いちねん(ichinen) 【一念】

(n) determined purpose
(Buddh) an incredibly short span of time (i.e. the time occupied by a single thought)
(Buddh) a single repetition of a prayer (esp. in Jodo-shu) →Related words: 浄土宗

いちねんほっき(ichinenhokki) 【一念発起 ·一念ほっき】

しょいちねん(shoichinen) 【初一念】

いちねんてんにつうず(ichinentennitsuuzu) 【一念天に通ず】

おんなのいちねんいわをもとおす(onnanoichineniwawomotoosu) 【女の一念岩をも通す】