We develop appreciative joy (Mudita) by focusing on the happiness in others' lives and our life, leading also to a sense of gratitude. Joy and happiness then serve as links that lead onward to liberation.
Looking directly at the original text in the Satipatthana Sutta on the third foundation of mindfulness, how does the Buddha instruct us and what supports this contemplation.
The problems and distractions in the present are not something you simply want to push your way through or get out of the way. You have to understand how they happen, for that understanding forms the essence of insight.