There is no scientific evidence to suggest that dogs are able to sense whether someone is spiritual or not. However, it is possible that dogs may be able to pick up on certain cues or behaviors that are associated with spirituality, such as a calm, peaceful demeanor or a sense of connection to the natural world.
It is important to note that dogs have an incredible ability to sense and respond to the emotions of their human companions. They are able to pick up on subtle changes in body language, tone of voice, and other nonverbal cues, and they are able to respond accordingly. This ability may lead some people to believe that their dogs are able to sense when they are feeling particularly spiritual or connected to a higher power.
It is also worth considering that dogs are highly attuned to the energy and vibrations of their surroundings. Some people believe that dogs are able to sense the presence of angels or other spiritual beings, and may react in a way that suggests they are aware of these beings. Again, there is no scientific evidence to support this belief, but it is possible that dogs may be able to sense certain energies or vibrations that are associated with spirituality.
Ultimately, the question of whether dogs can sense a spiritual person is a complex one that is difficult to answer definitively. While there is no scientific evidence to support the idea that dogs are able to sense spirituality in others, it is clear that they have an incredible ability to sense and respond to the emotions and energy of their surroundings. So, it is possible that dogs may be able to sense certain cues or behaviors that are associated with spirituality.