Hexagram 49, Revolution (Gé, 革), is formed of the upper trigram Lake (兑) over the lower trigram Fire (离). Below is the classical judgment, the six line texts, and how to read this hexagram in a reading.
The Judgment
Revolution: on the appointed day, belief follows. Supreme success through perseverance; remorse vanishes.
巳日乃孚，元亨利贞，悔亡。
Trigrams
☱
Upper · Lake 兑
joy, openness
☲
Lower · Fire 离
clarity, clinging
The outer (upper) trigram Lake describes the situation as it meets the world; the inner (lower) trigram Fire describes its inner disposition. Together they set the theme of Revolution.
The Six Lines
初九 · Line 1 Bound fast with yellow oxhide — not yet time to change.巩用黄牛之革。
六二 · Line 2 On the appointed day, make the change. Advancing brings good fortune, no blame.巳日乃革之，征吉，无咎。
九三 · Line 3 Rushing forward bodes ill; danger even in persistence. When talk of change has thrice matured, act with confidence.征凶，贞厉；革言三就，有孚。
九四 · Line 4 Remorse vanishes. With sincerity, the mandate itself is changed. Good fortune.悔亡，有孚改命，吉。
九五 · Line 5 The great one changes like a tiger — bold and clear: believed even before divining.大人虎变，未占有孚。
上六 · Line 6 The noble one changes like a leopard; the petty change only their faces. Pushing on bodes ill; steady abiding brings good fortune.君子豹变，小人革面；征凶，居贞吉。
Reading Hexagram 49 for Your Question
When Revolution appears without changing lines, the judgment above stands as the whole answer. When you cast changing lines (a 6 or a 9), read those line texts first — they are the most specific guidance — then look to the relating hexagram they form for where the situation is heading. For love, career, or a decision, apply the theme of Revolution to your own circumstances rather than reading it as a fixed prediction.
Ask the oracle your own question and see whether Revolution answers.