Truth has its own power.

The meaning of this sentence is that real things have great power and can have a far-reaching impact.

"Truth" refers to fact, truth or authenticity. When something is true, its power will become great. This is because real items or events are usually based on facts and evidence, which can support their effectiveness and credibility.

"Force of hosts" is an adjective, which means that the power is very strong, strong enough to have a very far-reaching impact. In this sentence, "the power of all forces" is used to describe the power of real objects or events.

So the meaning of this sentence is that real things can have powerful influence and strength, can affect people's behavior, thoughts and life, and even change the direction of the whole society.