Both in the East and in the West, there is, apart from the religious approach to God, also a purely rational one. Although in India philosophical speculationon God was mostly inextricably bound to religion, there have also been purely rational developments in Indian Theodicy. This is the case above all in theNyāyavaiśeṣika system, where we find a purely rational and logical approach to the question of the existence and nature of God. It is the specific contribution of the Nyāyavaiśeṣika system to have developed a purely logical and rational argument for the existence of God. My purpose here is to take this proof in its developed form, as it is found in Gaşgeśa, and investigate its philosophical and logical implications.

Each phenomenon contains variable components, which are conservative. Because of their conservation, they accumulate. Present phenomena containconstituents of phenomena, belonging to the past which form the present and the future, and their dependence on time is an exponential one - S = Sₒe^t-tᵖ (S is avariable component, is a moment in the past). We assume that before and after tₒ = t-tᵖ = 0 the change pertains to phenomena of one type. The dependency is foreach defined phenomenon of one and the same type (for its characteristics). The concrete aspect of the change S will depend on the type of the phenomenon. We show in our study how in some cosmological phenomena, the exponential dependence on time is present. The processes of radioactive disintegration of atomic nuclei, are also phenomena of this type. We present the real phenomena as a sum of exponents. Each phenomenon originates, develops and is destroyed. In reality most phenomena are formed as a composition of exponential dependencies of the change (of its characteristics).