In the loving kindness exercise the focus of the meditation was on the physical body getting your self to calm down physically in order to experience the mental aspects of the meditation. Loving-kindness meditation is a mental exercise that individuals can practice everyday this meditative exercise has been demonstrated to enhance wellbeing, relationships, and health to engage in this exercise, individuals sit quietly, usually with their eyes closed, and focus their attention towards their breath for several minutes. Next, they direct this attention towards their heart for a while, before forming an image of someone they love unconditionally, perhaps their child or spouse. Then, these individuals attempt to create the feelings they usually experience towards this person-perhaps feelings of warmth, tenderness, and hope. Next, they learn to direct these feelings and thoughts towards themselves-that is, they feel warmth, tenderness, kindness, and so forth towards themselves. Subsequently, they attempt to extend the same feelings to an increasing breadth of individuals: their friends, their acquaintances, their managers, their rivals, or even strangers. Several other variants of this practice have been applied as well.
In exercise two the Subtle mind exercise, the focus is more on training the mind to develop the ability to experience the more subtle levels of the mind. This is where we experience healing. This is an exercise to help you become more sensitive to energies to amplify and increase your own energies so that you can start to play with these. It basically helps you to engage with your energy self in more direct ways and helps you to become more comfortable sensing energies and becoming aware of your self as an energy based being. I can't say specifically that I experienced any major frustration with the exercises I enjoyed them both I like the loving kindness one better though.