The impersonal aspect [of God] (Nirakara, Nirguna) is called Brahman, or 'unknowable' by Herbert Spencer, 'will' by Schopenhauer, Absolute Noumenon by some 'substance' by Spinoza. The personal aspect (Sakara) of that Being is termed 'Ishvara' or Allah, Hari, Jehova, Father in Heaven, Buddha, Siva, etc. Just as vapour or steam is formless, so also God is formless in His unmanifested or transcendental state.
SivanandaThis world is your best teacher. There is a lesson in everything. There is a lesson in each experience. Learn it and become wise. Every failure is a stepping stone to success. Every difficulty or disappointment is a trial of your faith. Every unpleasant incident or temptation is a test of your inner strength. Therefore nil desperandum. March forward hero!
Sivananda