Haptic technology in general not harmful to the human body and can be focused easily. One company called Ultrahaptics has been working with this technology to provide non-contact haptic feedback. Founded in 2013, Ultrahaptics has focused on providing users haptic feedback in free space using ultrasound technology. They use multiple ultrasound speakers to make changes in the air pressure around the user. This provides the ability to feel the pockets of pressurized air focused in the environment. This gives the user tactile cues for gestures, invisible interfaces, textures, and virtual objects. The company is continuing to grow and launched their evaluation programme
Catechism of the Catholic Church the four senses of Scripture, which encompass the literal sense and the three spiritual senses (allegorical, moral, and anagogical). The literal sense pertains to the meaning of the words themselves, including any figurative meanings. The spiritual senses pertain to the significance of the things (persons, places, objects or events) denoted by the words. Of the three spiritual senses, the allegorical sense is foundational. It relates persons, events, and institutions of earlier covenants to those of later covenants, and especially to the New Covenant. Building on the allegorical sense, the moral sense instructs in regard to action, and the anagogical sense