We are all individuals, and much of this depends on the makeup of your character, including your astrology. For example, some may have stronger visualization skills (often associated with Earth signs like Virgo), while others may have a deeper capacity for imagination and feeling (often linked to Water dominance).
An individual can progress very far using feeling alone, especially if they develop strong sensitivity and focus. Feeling taps into intuition and the energy behind what is being worked with, which is just as real, if not sometimes deeper, than visualization alone.
Visualization is a powerful tool too because it helps direct and shape energy clearly. However, feeling allows you to sense, interpret, and respond to energies in a very natural way.
If one is strong, both can take a person very far on the spiritual path. A powerful method is to combine both imagination/feeling and visualization. As one progresses spiritually, both abilities tend to strengthen naturally over time.
For someone who is physically blind, they can become highly adept at using their other senses. However, it is still important for them to focus on empowering all their psychic senses, including the visual centers. I once read about a psychic who, although physically blind, could see clearly through her clairvoyant chakras. Those around her were stunned to learn that despite her physical blindness, she was able to "see" spiritually.
Ultimately, the mind and soul are powerful tools that can transcend physical limitations when properly trained and developed.
