The prove of Holy Trinity can be observed in abundance through nature. For example water exist in three states, ice, water and vapour.
Reply by Elias
Do men understand what is happening at the black hole, where there are immense gravity? Do men understand what is happening at the core of the sun, where there are immense heat and pressure? Some theory exist, scientists are still trying to find out. The three state of solid, liquid and gas is only what men can understand, does not means that there is nothing beyond the state of gas. Plasma is gas energies beyond a certain state and hence a state beyond gas.
It is wrong to define God by men’s ignorance.