In the most common-sense and basic way imaginable, we are all animals on the Earth and land ownership is an illusion conjured from ancient violence. In more evolved human futures, such myths shall dissolve. But we live here now, and so must deal with how things are.
If you see somewhere you really feel called to walk to, do so with rightesousness. But go gently and respectfully, and be ready to apologise if challenged. The best counter to people accusing you of trespass is extreme polite friendliness. This is powerful kung-fu, Jesus style. But even better is to remain subtle and quiet enough to evade any such challenge. As such, it is always good advice to avoid wearing garish and bright colours while Wayfaring. Red berghaus jackets will make you visible from miles away.
At the end of the day, the punishment for roaming harmlessly on someone else’s land is to be asked to retrace your steps and leave. And that is no terrible thing. If you do encounter trouble, be sure to film it with your camera for safety.
The key to trespass is respect. Do not leave gates open, do not spook livestock, and do not damage anything. If your presence is the only problem caused, you can easily remedy this issue, and you may find that many old school farmers have no problem with you at all.
Navigate your way with joy and strength, and walk well!