Complex sentence: As Gajendra sighted the Lord coming, he lifted a lotus with his trunk, seeing this lord was pleased and with his Sudharshana Chakra separated the crocodile's head from its body and Gajendra prostrated before the Lord.
Split into simpler sentences: As Gajendra sighted the Lord coming, he lifted the lotus with his trunk. Seeing this, the Lord was pleased and with his Sudharshana Chakra Vishnu separated the crocodile's head from its body, and Gajendra prostrated himself before the Lord.