What I do is simply connection with Gods and spirits. Since I believe in those, of course I would involve them in the spells directly.
I simply believe in magical triad of:
- Caster
- Desired effect
- Action by caster which achieves desired effect.
Now, what action is, is up for interpretation. I think it is true that herbs have energy, and collecting them and using them is action which achieves some effect. Drawing symbols, especially symmetrical symbols, is likewise action which achieves effect. Science says effect is psychological, I of course disagree because in the world of complete interconnection, smallest change can cause butterfly effect to a whole world.
Likewise, offering to Gods is an action which achieves desired effect. I just find atheism limited because it cannot do offerings to Gods, and if atheist doesnt believe in spirits, he cannot give them offerings either.