Jai Sri Ganesha,
Sri Nandi ji ever find his define place in front of Lingam, mostly outside the Vigrah for a mystic cause, and ever act as savior for devotees,
Sri Nand ji is very fond of devotees of lord Shiva and serve them suitable with their need and the cause,
Devotees whisper at the left ear of sri Nandi ji through pitch of breath alone for immediate relief, breath express the feeling and sri Nand ji make it to reach at even with mild proximity of aspirant,
And Sri Nandi ji address the grieve with time irrespective of merits,
May Lord bless all,
Thanks please