The Most Fascinating of Gods:
He is also often portrayed as the supreme ascetic with a passive and composed disposition. Sometimes he is depicted riding a bull called Nandi decked in garlands. Although a very complicated deity, Shiva is one of the most fascinating of Hindu gods.
The God Who’s Always High!:
Since Shiva is regarded as a mighty destructive power, to numb his negative potentials he is fed with opium and is also termed as ‘Bhole Shankar’, one who is oblivious of the world. Therefore, on Maha Shivratri, the night of Shiva worship, devotees, especially the menfolk, prepare an intoxicating drink called ‘Thandai’ (made from cannabis, almonds, and milk) sing songs in praise of the Lord and dance to the rhythm of the drums.
source : http://www.sanskritimagazine.com