Miracle is an exceptionally efficient linear temperament which is a member of both the marvel temperaments and the gamelismic clan. It is quite accurate, with TOP error only 0.63 cents/octave, meaning intervals of the 11-limit tonality diamond are represented with only one or two cents of error. Yet it is also very "low complexity" (efficient), as evidenced by the high density of 11-odd-limit ratios (in bold) in the following table:

number of
secors
JI intervals
represented
0 1/1
1 16/15, 15/14
2 8/7
3 11/9
4 21/16
5 7/5
6 3/2
7 8/5
8 12/7
9 11/6
10 88/45, 96/49, 49/25,
108/55, 55/28, 63/32
11 22/21, 21/20
12 9/8
13 6/5
14 9/7
15 11/8
16 22/15
17 11/7
18 42/25, 27/16
19 9/5
20 48/25, 27/14
21 36/35, 33/32
22 11/10
23 33/28
24 44/35
25 27/20
26 36/25
27 54/35, 77/50
28 33/20
29 44/25
30 66/35
31 81/80

Some temperaments have 11/9 as a "neutral third", meaning it's exactly half of a 3/2 (tempering out 243/242), and other temperaments (in the gamelismic clan) have 8/7 as exactly a third of 3/2. Miracle is distinguished by doing both of these things at the same time, so 3/2 is divided into six equal parts. This is in fact the generator of miracle temperament, called a "secor", and it represents both 16/15 and 15/14.

Miracle can also be thought of as a cluster temperament with 10 clusters of notes in an octave. The small chroma interval between adjacent notes in each cluster is very versatile, representing 45/44 ~ 49/48 ~ 50/49 ~ 55/54 ~ 56/55 ~ 64/63 all tempered together.

Spectrum of Miracle Tunings by Eigenmonzos

Eigenmonzo Secor
8/7 115.587
11/9 115.803
5/4 116.241
7/5 116.502
6/5 116.588 (5 and 7 limit minimax)
11/10 116.591
12/11 116.596
14/11 116.617
7/6 116.641
10/9 116.716 (9 and 11 limit minimax,
Secor's definition of secor)
11/8 116.755
9/7 116.792
4/3 116.993