Answer:
"No puedo saber para donde voy"- I don't know where I'm going
"Si no sé de dónde vengo"- If I don't know where I come from.
This phrase means to me, exactly what it says, how can you continue your path if you don't even know where you are coming from? It's like walking through the fog. You need to see what's ahead to physically feel safe to walk through it.
Step-by-step explanation: