Truth is one, though the sages know it as many . God is one, though different religions approach Him differently Call Him Shiva, Vishnu, Allah, Jesus or any other form of God that you believe in . Our paths may be different. Our destination is the same.”
Mahadev - beautiful Shiva, a perfect form to meditate on..alternatively one can meditate one one's favourite deity (Isht Dev) such as Rama/ Krishna/ Divine Mother Durga-Parvati (the consort of Lord Shiva).